Home / 15,350.07-21,091.30-12,200.79

Finding the Fourth Proportional to 15,350.07, 21,091.30 and 12,200.79

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Solution

The fourth proportional to 15,350.07, 21,091.30 and 12,200.79 is: 16,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.07 : 21,091.30 = 12,200.79 : x
  2. Step 2: Convert to fraction form
    15,350.07/21,091.30 = 12,200.79/x
  3. Step 3: Cross multiply
    15,350.07x = 21,091.30 × 12,200.79
  4. Step 4: Simplify right side
    15,350.07x = 257,330,491.63
  5. Step 5: Solve for x
    x = 257,330,491.63/15,350.07
  6. Step 6: Final answer
    x = 16,764.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.